Perimeter & Area

Front

What is the definition of perimeter?

Back

Perimeter is the total distance around the outside of a shape.

Front

How do you calculate the perimeter of a rectangle?

Back

Add the lengths of all four sides or use the formula: P = 2(length + width).

Front

What is the definition of area?

Back

Area is the amount of space inside a two-dimensional shape.

Front

How do you calculate the area of a rectangle?

Back

Multiply the length by the width: A = length × width.

Front

What is the formula for the area of a triangle?

Back

A = 1/2 × base × height.

Front

What is the formula for the perimeter of a square?

Back

P = 4 × side length.

Front

If a rectangle has a length of 10 cm and a width of 5 cm, what is its area?

Back

50 cm².

Front

If a square has a side length of 4 cm, what is its perimeter?

Back

16 cm.

Front

What is the relationship between area and perimeter?

Back

Area measures the space inside a shape, while perimeter measures the distance around it.

Front

How do you find the missing side length of a rectangle if you know the perimeter?

Back

Use the formula P = 2(length + width) and solve for the missing side.